feat(pivot): PR-B2 — port nccl_fr off internal pipeline+consumer

[trilamsr]

Summary

• Port components/receivers/nccl_fr off the v0.1.x internal facades
  (internal/pipeline, internal/consumer, internal/runtime/lifecycle)
  onto upstream go.opentelemetry.io/collector/{component,receiver,consumer}
  v1.59.0 — the canonical types the OCB-generated _build/main.go
  already consumes for all third-party receivers.
• Factory is now receiver.NewFactory(componentType, createDefaultConfig, receiver.WithLogs(createLogs, component.StabilityLevelBeta)) instead
  of a hand-rolled struct implementing internal/pipeline.ReceiverFactory.
  Stability level (Beta) preserved across the swap so OCB-surfaced
  metadata doesn't regress.
• Receiver struct renamed to ncclFRReceiver (avoids collision with the
  upstream receiver package name) and implements receiver.Logs via
  a Start(ctx, component.Host) error / Shutdown(ctx) error pair —
  the pipeline.ComponentState embed was dropped (upstream
  component.Component carries no equivalent mixin; the lifecycle
  bookkeeping the receiver actually needs lives in the sibling
  lifecycle.go helper added in PR-B1 feat(pivot): PR-B1 — port nccl_fr off internal selftel + lifecycle #184).
• Logger swapped from *slog.Logger → upstream's *zap.Logger
  (the type carried in component.TelemetrySettings.Logger). All log
  call sites converted to zap.String/Int64/Duration/Error fields;
  log messages and fields are byte-for-byte preserved so operator
  alerting on log content does not regress.

Hard gate

PR-I.1 (submodule extraction to module/receiver/ncclfrreceiver/) requires
grep -r 'internal/(pipeline|consumer|runtime/lifecycle)' components/receivers/nccl_fr/
to return zero hits. This PR clears it:

$ grep -rn 'internal/pipeline\|internal/consumer\|internal/runtime/lifecycle' components/receivers/nccl_fr/*.go
(no matches)

(Two comment-only mentions remain in lifecycle.go and factory.go —
historical context for the v0.1.x → v0.2.0 migration, not imports.)

Predecessor

PR-B1 #184 (merged 2026-05-30) ported the self-telemetry + lifecycle
helpers into the package as siblings. This PR (PR-B2) handles the
pipeline + consumer + factory layer — the last remaining
internal/* imports.

Test plan

• go build ./... — green
• go test ./components/receivers/nccl_fr/... -race — 12 tests pass
• go test ./... — green except pre-existing flake in
  components/receivers/kernelevents/TestReceiver_SLIBudget
  (verified flaky on stashed/PR-B2-not-applied tree)
• make check — golangci-lint + go vet + go mod verify — green
• Scope-name pin (TestSelfTelemetry_ScopeNameIsReceiverImportPath)
  still asserts github.com/tracecoreai/tracecore/components/receivers/nccl_fr
• Factory fallback contract (TestFactory_FallsBackToNoopWhenMeterFails)
  still surfaces tracecore.selftelemetry.init_errors_total when
  every tracecore.receiver.* instrument registration is synthetically failed

Compatibility note

go.mod now pins go.opentelemetry.io/collector/{component,receiver,consumer} v1.59.0
— the v1.x stable line aligned with pdata v1.59.0 the repo was already on.
No transitive-dep churn beyond zap 1.24.0 → 1.28.0 (upstream component
v1.59.0 requires it).

NONE

Type-swap reference

This PR is the first-of-kind upstream-API port; 7 more receiver/exporter
ports (PR-F.2 series — clockreceiver, kernelevents, stdoutexporter,
k8sevents, containerstdout, otlphttp, pyspy, dcgm) inherit this exact
mapping. Use this table as reference when porting those components off
internal/pipeline + internal/consumer.

Internal	Upstream
internal/pipeline.Type	component.Type
internal/pipeline.ReceiverFactory	receiver.Factory
internal/pipeline.CreateSettings	receiver.Settings (via receivertest.NewNopSettings in tests)
internal/pipeline.Config	component.Config
internal/pipeline.Receiver	receiver.Logs (= interface{ component.Component })
internal/consumer.Logs	consumer.Logs
*slog.Logger	*zap.Logger
internal/pipeline.MustNewType	component.MustNewType
internal/pipeline.MustNewID	component.NewIDWithName

Deep-review cleanup (post-aec83be)

A follow-up commit applies five reference-pattern fixes so PR-F.2 inherits
the cleanest possible template:

1. Deleted dead var Factory + indirection wrapper — NewFactory() now
   constructs the factory directly, mirroring upstream otlpreceiver /
   filelogreceiver. The tools/components-gen driver that motivated the
   package-var was deleted in PR-A2 chore(pivot): delete kueue + kineto receivers per RFC-0013 #168.
2. Fixed misleading comment claiming receiver.Logs carries a
   "LogsReceiver tag" — upstream defines receiver.Logs as
   interface { component.Component }; the type identity is a
   documentation marker only.
3. Switched tests to upstream receivertest.NewNopSettings(componentType())
   so test Settings auto-track upstream field additions (BuildInfo,
   TelemetrySettings). A thin testSettings() wrapper pins the ID to
   nccl_fr/test so selftel label assertions stay deterministic.
4. Renamed unexported ncclFRReceiver → ncclfrReceiver per Go acronym
   convention (lowercased) and aligned with the planned PR-I.1b package
   name ncclfrreceiver.
5. Appended this Type-swap reference section.